Method for producing non-paper pulp natural fibers of paper pulp molded products

ABSTRACT

A method for producing non-paper pulp natural fibers of paper pulp molded products, which is primarily produced by the following steps in sequence: a. scouring, b. bleaching, c. washing, d. dehydrating, e. pulverize, f. pulping, g. moldable pulp, h. paper pulp molding, and i. releasing, so as to obtain the paper pulp molded finished products made with non-paper pulp natural fibers. According, the present invention may use the traditional industrial waste such as palms, hemp and coconut shells as the major material for paper molded products to both decrease the cost of paper molded products and maintain the ecological environment of the earth.

FIELD OF THE INVENTION

The present invention relates to a method for producing non-paper pulpnatural fibers of paper pulp molded products, especially relates to amethod that recycle and reuse the traditional industrial waste withcoarser natural fibers such as palms, hemp and coconut shells toreproduce to a moldable pulp by steps such as scouring and bleaching, soas to produce a paper molded product. Therefore, the problem that paperpulp is hard to be obtained may be solved, and the cost of the papermolded product may be decreased.

BACKGROUND OF THE INVENTION

Generally, a well-known paper molded packing product material,especially to a fibrous material used for a packing container withenvironmental protection effect or decomposable. As known thatconventional paper production technology can not deal with harderfibers, therefore, the nonpoisonous plants such as wood pulp, sugar canebagasse, phragmites communis, straw pulp, grain shells, starch andrecycled paper are the major raw material, however, the amount of theabove mentioned paper pulp raw material is limited, especially thattrees are the primary raw material for producing paper pulp, and are themax number of usage, which seriously persecute the ecologicalenvironment of the earth. Therefore, some proprietors and nations whocare the environmental protection have tried hard to find the replaceproduct.

Because of the reason that when using paper pulp as the raw material forproducing paper molded product, the amount of the material is small, theobtaining cost is high and id more dangerous to the ecologicalenvironment, the inventor of the present invention concentrate himselfwith many years experience to create a new method for producingnon-paper pulp natural fibers of paper pulp molded products.

The primary object of the present invention is to provide a method forproducing non-paper pulp natural fibers of paper pulp molded products,which recycle and reuse the traditional industrial waste which has neverbeen used before, such as palms, hemp and coconut shells, to both solvethe problem of waste in the processing products nations and areas thatproduce palms, hemp and coconut shells (trees), and decrease the loggingof trees to protect the ecological environment of the earth.

The another object of the present invention is to provide a method forproducing non-paper pulp natural fibers of paper pulp molded products,which produces the paper molded products by recycling and reusing thetraditional industrial waste that has never been used before, such aspalms, hemp and coconut shells, to decrease the cost.

SUMMARY OF THE INVENTION

To achieve the above object, the producing steps of the presentinvention comprising: a. scouring, soaking and stirring the non-paperpulp natural fibers with water in a tank, wherein the ratio of thenatural fibers to water is 1:10, adding 0.01%˜5% parts NaOH, scouringagents, penetrating agents and bleaching stabilizers, relative to thenatural fibers, and being well stirred; b. bleaching, 1%˜10% parts H2O2relative to said natural fibers is added well stirring of step a forstirring to an appropriate degree, for bleaching and being heated toabout 90° C. with soaked time in 30˜90 minutes; c. washing, obtainingsaid non-paper pulp natural fibers after finishing bleaching of step b,then be soaked into the cold water with 0.01%˜5% Sodium Hydrosulfiteabout 30 minutes; d. dehydrating, taking out said non-paper pulp naturalfibers after washing and swing or air-drying it; e. pulverizing, puttingsaid non-paper pulp natural fibers into the pulverizer afterdehydrating; f. pulping, putting said non-paper pulp natural fibers intothe mixing pulp tank with adding the water to become a well mixednatural fibers pulp after pulverizing, wherein the ratio of the naturalfibers to water is 1:10; g. moldable pulp, mixing cross-linking agentscontaining nonionic compounds and cationic compounds with said non-paperpulp natural fibers in a storage tank to become a moldable pulp afterpulping, wherein said cross-linking agent is made with 0.75%˜5.4% partsFluorochemical serice, 0.9%˜7.2% parts High polymer compound,0.15%˜0.54% parts Aliphatic polyamine and 0.75%˜9% parts Alkyl acrylcopolymers, relative to the amount of said natural fibers; h. paper pulpmolding, spraying a releasing harmonizing agent membrane on the surfaceof a paper molding mold, applying appropriate moldable pulp and thenbeing heated to about 120° C., 10˜20 minutes for drying thermosetting,wherein said releasing harmonizing agent is mixed from 9.5% partsreleasing agent, 0.5% cross-linking agent and 90% dilute water; i.releasing, releasing products from mold by air-blowing to obtain paperpulp molded products.

As the above producing method, in step f, wherein after pulverizing saidnon-paper pulp natural fibers, further adds a part of paper pulp,recycled paper, or thermal resistance additives containing anioniccompounds with equal amount of non-paper pulp natural fibers, and then,being stirred with water to form a uniform natural fibers pulp; saidthermal resistance additives containing 50%˜80% parts Inorganic AluminumSilicate and 1.5%˜9% parts Natural wax emulsion, relative to saidnatural fibers.

Also, after step l, a chemical polymer (such as PP, OPP, OPS, PE, PET,or environmental protection waterproof, watergrease water based paint)protection membrane is coated on the inner or outer surface of the paperpulp molded products obtained from releasing by spraying, coating orpasting, to meet the requirement of containing foods for differentusage.

Because the paper molded products produced by above method use thetraditional industrial such as palms, hemp and coconut shells (trees) asthe major raw material, the cost may be decreased, the problem ofindustrial waste may be solved, and the logging amount of trees may bedecreased to protect the ecological environment.

DETAILED DESCRIPTION OF THE EMBODIMENT

The following provides an explanation of an embodiment of the method forproducing non-paper pulp natural fibers of paper pulp molded productionof the present invention based on the drawings so as to make examinersmore realize the technology, characters, and effective of the presentinvention:

First, as shown in FIG. 1, the method for producing non-paper pulpnatural fibers of paper pulp molded production of the present inventioncomprises the steps of:

-   -   a. Scouring, soaking and stirring the non-paper pulp natural        fibers with water in a tank, wherein the ratio of the natural        fibers to water is 1:10, adding 0.01%˜5% parts NaOH, 0.01%˜5%        parts scouring agents, 0.01%˜5% penetrating agents and 0.01%˜5%        bleaching stabilizers, relative to said natural fibers, and well        stirred to easier crack the harder fibers; said non-paper pulp        natural fibers being selected from one of the group of palms,        hemp, coconut shells and the mixture thereof;    -   b. Bleaching, 1%˜10% parts H2O2 relative to said natural fibers        is added after well stirring of step a for stirring to an        appropriate degree, for bleaching and being heated to about        90° C. with soaked time in 30˜90 minutes, so as to lighter the        color of the natural fibers;    -   c. Washing, obtaining said non-paper pulp natural fibers after        finishing bleaching of step b, then be soaked into the cold        water with 0.01%˜5% Sodium Hydrosulfite about 30 minutes, so as        to wash the bleaching agents and chemical material therein out        and maintain the natural fibers in a controllable stable state;    -   d. Dehydrating, taking out said non-paper pulp natural fibers        after washing and swing or air-drying it;    -   e. Pulverizing, putting said non-paper pulp natural fibers        (still containing 50%˜60% water) into the pulverizer after        dehydrating, so as to make the natural fibers thinner and        shorter;    -   f. Pulping, putting said non-paper pulp natural fibers into the        mixing pulp tank with adding the water to become a well mixed        natural fibers pulp after pulverizing, wherein the ratio of the        natural fibers to water is 1:10;    -   g. Moldable pulp, mixing cross-linking agents containing        nonionic compounds and cationic compounds with said non-paper        pulp natural fibers in a storage tank to become a moldable pulp        after pulping, wherein said cross-linking agent is made with        0.75%˜5.4% parts Fluorochemical serice, 0.9%˜7.2% parts High        polymer compound, 0.15%˜0.54% parts Aliphatic polyamine and        0.75%˜9% parts Alkyl acryl copolymers, relative to the amount of        said natural fibers;    -   h. Paper pulp molding, spraying a releasing harmonizing agent        membrane on the surface of a paper molding mold, applying        appropriate moldable pulp and then being heated to about 120°        C., 10˜20 minutes for drying thermosetting, wherein said        releasing harmonizing agent is mixed from 9.5% parts releasing        agent, 0.5% cross-linking agent and 90% dilute water;    -   i. Releasing, releasing products from mold by air-blowing to        obtain paper pulp molded products

As the above method for producing non-paper pulp natural fibers of paperpulp molded production of the present invention, which recycle and reusethe traditional industrial waste such as palms, hemp and coconut shells,after a series special steps such as scouring and bleaching, to bothsolve the problem of waste in the processing products nations and areasthat produce palms, hemp and coconut shells (trees), and decrease thelogging amount of trees to protect the ecological environment;furthermore, the cost may be decreased efficiently and the competitionability may be increased by the method for producing non-paper pulpnatural fibers of paper pulp molded production of the present invention.

As shown in FIG. 2, a part of paper pulp or, recycled paper is mixedwith said pulverized non-paper pulp natural fibers to meet therequirement of the different production place, so as to increase theusing range and economical benefit; or thermal resistance additivescontaining anionic compounds is added, the amount is equal to non-paperpulp natural fibers, and 10 times amount of water is added together,then, being stirred to form a natural fibers pulp which can be used at200° C. to meet the requirement of oven or microwave; said thermalresistance additives containing 50%˜80% parts Inorganic AluminumSilicate and 1.5%˜9% parts Natural wax emulsion, relative to saidnatural fibers.

As the above method, after the releasing of step i, a chemical polymer(such as PP, OPP, OPS, PE, PET, or environmental protection waterproof,watergrease water based paint) protection membrane may be also coated onthe inner or outer surface of the paper pulp molded products obtainedfrom releasing by spraying, coating or pasting, to meet the requirementof containing foods for different usage

Although the above has provided an explanation of an embodiment of thepaper pulp mold packing structure of frozen foods for Oven and method ofproducing the same of the present invention based on the drawings,specific constitutions are not limited to the present embodiments, butrather the design and so forth may be altered provided it is within arange that does not deviate from the gist of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 Is a block flow chart showing the method for producing non-paperpulp natural fibers of paper pulp molded product of the presentinvention; and

FIG. 2 Is a block flow chart showing the method for producing non-paperpulps natural fibers of paper pulp molded product for another embodimentof the present invention.

1. A method for producing non-paper pulp natural fibers of paper pulpmolded products, which is primarily produced by the following steps: a.Scouring, soaking and stirring the non-paper pulp natural fibers withwater in a tank, wherein the ratio of the natural fibers to water is1:10, adding 0.01%˜5% parts NaOH, 0.01%˜5% parts scouring agents,0.01%˜5% penetrating agents and 0.01%˜5% bleaching stabilizers, relativeto said natural fibers, and well stirred; said non-paper pulp naturalfibers being selected from one of the group of palms, hemp, coconutshells and the mixture thereof; b. Bleaching, 1%˜10% parts H2O2 relativeto said natural fibers is added after well stirring of step a forstirring to an appropriate degree, for bleaching and being heated toabout 90° C. with soaked time in 30˜90 minutes; c. Washing, obtainingsaid non-paper pulp natural fibers after finishing bleaching of step b,then be soaked into the cold water with 0.01%˜5% Sodium Hydrosulfiteabout 30 minutes; d. Dehydrating, taking out said non-paper pulp naturalfibers after washing and swing or air-drying it; e. Pulverizing, puttingsaid non-paper pulp natural fibers into the pulverizer afterdehydrating; f. Pulping, putting said non-paper pulp natural fibers intothe mixing pulp tank with adding the water to become a well mixednatural fibers pulp after pulverizing, wherein the ratio of the naturalfibers to water is 1:10; g. Moldable pulp, mixing cross-linking agentscontaining nonionic compounds and cationic compounds with said non-paperpulp natural fibers in a storage tank to become a moldable pulp afterpulping, wherein said cross-linking agent is made with 0.75%˜5.4% partsFluorochemical serice, 0.9%˜7.2% parts High polymer compound,0.15%˜0.54% parts Aliphatic polyamine and 0.75%˜9% parts Alkyl acrylcopolymers, relative to the amount of said natural fibers; h. Paper pulpmolding, spraying a releasing harmonizing agent membrane on the surfaceof a paper molding mold, applying appropriate moldable pulp and thenbeing heated to about 120° C., 10˜20 minutes for drying thermosetting;and i. Releasing, releasing products from mold by air-blowing to obtainpaper pulp molded products.
 2. The method according to claim 1, whereinsaid releasing harmonizing agent is mixed from 9.5% parts releasingagent, 0.5% cross-linking agent and 90% dilute water.
 3. The methodaccording to claim 1, in step f, wherein A part of paper pulp is mixedwith said pulverized non-paper pulp natural fibers, and 10 times amountof water is added to stirring together to form a uniform natural fiberspulp.
 4. The method according to claim 1, in step f, wherein afterpulverizing said non-paper pulp natural fibers, 10 times amount of wateris added and stirred to form a uniform natural fibers pulp, and thermalresistance additives containing anionic compounds is added and stirredto form a uniform thermal resistance natural fibers pulp, said thermalresistance additives containing 50%˜80% parts Inorganic AluminumSilicate and 1.5%˜9% parts Natural wax emulsion, relative to saidnatural fibers.
 5. The method according to claim 1, in step l, whereinafter obtaining said paper pulp molded products, a step j for coating amembrane may be added to form a protecting membrane with chemicalpolymer on the surface of said paper pulp molded products.
 6. The methodaccording to claim 5, wherein said step j is to coat a layer of chemicalpolymer on the surface of said paper pulp molded products.
 7. The methodaccording to claim 5, wherein said step j is to paste a layer ofchemical polymer on the surface of said paper pulp molded products. 8.The method according to claim 5, wherein said step j is to spread alayer of chemical polymer on the surface of said paper pulp moldedproducts.